Corrugated board converting industry usually uses
high-capacity machines but nowadays customers may want
even smaller and smaller series. Small series is not
anymore economical with punching knifes, because tool
cost is quite high compared to cost of one piece.
Conventionally cutting of corrugated board is done by
mechanical cutting. Making of these punching knifes is
time consuming and they also wear out after large number
of punches. Laser could be the solution for cutting small
series production and also for fast delivery needs.
Laser cutting of corrugated board is possible and cut
quality is very good. The most important advantage of
laser technology is the flexibility: the batch size can
be, ten pieces or ten thousand pieces or even one piece.
Changing of the cutting geometry is only a question of
In this study two different corrugated boards were cut
with laser in Lappeenranta Laser Processing Centre
(LLPC). The laser equipment used in these studies was 2.7
kW CO2-laser. The cutting speed 100 m/min was achieved
with laser power of 700 W when 1 mm thick corrugated
board was cut straight with laser.
Laser cutting of corrugated boards was possible and laser
power was linearly dependent on cutting speed. Smoke
formation was fairly abundant. Cut parts smell quite
badly right after cutting but odour disappears within few
days in open air. Despite of this the quality of cut of
corrugated boards with thickness of 1 and 3 mm was good.
In this paper is also one small series production batch
of 10 pieces was cut with laser and calculations of the
economics of cutting were made. Economics are compared to
punching knifes and it seems that with this kind of
product laser has the advantage.
|Title of host publication||11th NOLAMP Conference in Laser Processing of Materials, NOLAMP 11|
|Editors||Veli Kujanpää, Antti Salminen|
|Place of Publication||Lappeenranta|
|Publisher||Lappeenranta University of Technology|
|Publication status||Published - 2007|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Series||Acta Universitatis Lappeenrantaensis|
- corrucated board
- laser cutting
- carbon dioxide laser